Before you conduct a literature review, you need to have a good research question and at least a decent understanding of your topic. It's probably a good idea to just read for a while before you seriously start strategizing for your literature review. These steps are more or less necessary for any literature review, so it doesn't hurt to think about them ahead of time:
Formulate your research question
Find a focus and a working thesis statement for your lit review
Select appropriate databases
Search for sources
Keep organized with citation management software
Evaluate your sources
Structure your literature review
Write!